/* Variant selector buttons */
    .vb{
        display:inline-flex;align-items:center;gap:6px;
        padding:7px 15px;border-radius:var(--radius-sm,8px);
        border:1.5px solid var(--clr-border);
        background:var(--clr-surface);color:var(--clr-text);
        font-size:13px;font-weight:700;cursor:pointer;
        transition:border-color .15s,background .15s,color .15s;
        line-height:1.2;
    }
    .vb:hover{ border-color:var(--clr-primary); }
    .vb-active{
        border-color:var(--clr-primary)!important;
        background:rgba(var(--clr-primary-rgb,99,102,241),.1)!important;
        color:var(--clr-primary)!important;
    }
    .vb-dot{
        display:inline-block;width:13px;height:13px;border-radius:50%;
        border:1px solid rgba(128,128,128,.25);flex-shrink:0;
    }
    body.dark-mode .vb{ background:var(--clr-surface);color:var(--clr-text);border-color:var(--clr-border); }
    body.dark-mode .vb-active{ background:rgba(var(--clr-primary-rgb,99,102,241),.18)!important;color:var(--clr-primary)!important;border-color:var(--clr-primary)!important; }
    /* locked buy buttons */
    .pdp-btn-locked{ opacity:.48!important;filter:saturate(.35);cursor:not-allowed!important; }
    .pdp-btn-locked:hover{ transform:none!important;box-shadow:none!important; }